Portion of trash can



FIG. 1 is a perspective view of a portion of trash can showing my new design;

FIG. 2 is a left side view thereof, the right side being a mirror image;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof; and,

FIG. 5 is a top view thereof.

The broken lines in the drawing are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of trash can, as shown and described. 